A businessman from Salt Lake, Kolkata, lost ₹3.8 crore in a Facebook crypto investment scam after being lured by online advertisements promising high returns. The victim was persuaded to invest through a fraudulent trading platform and transferred funds over multiple transactions. When he tried to withdraw his profits, he was blocked by the scammers. Authorities have launched an investigation under cybercrime laws, warning the public against trusting unverified online investment schemes, particularly those promoted through social media platforms like Facebook and WhatsApp.